Improvement in safes



IUNITED STATES WALTER K. MARVIN,

PATENT rrcE.

or NEW YORK, N. Y.

IMPROVEMENT IN SAFES.

Specification forming part of Letters Patent No. 98,608, dated January4, 1870..

To all whom t may concern Be it known that I, WALTER K. MARVIN, of thecity, county, and State of New York, have invented certain new anduseful Improvements in Safes; and Ido hereby declare the following to bea full, clear, and exact description of the same, reference being had tothe accompanying drawings.

My invention is directed, rst, to the mode of `attaching to safes theangle-irons, by which their edges and corners are protected and,secondly, to the construction of the an gle-irons themselves.

j It has been usual to place angle-irons upon the edges of safes inorder to protect the joints formed at the junction of the sides; butwhen such irons were first so placed their edges were left unprotected,as shown at ct, Fig. 1, so that by inserting tools under them theangle-irons could be forced off with comparative ease, thus leaving thejoints lof the safe uncovered. To remedy this diliiculty the panelsformed by the angle-irons were illed up by plates, which were made flushwith the irons, and then riveted to the walls of the safe, as shown atb, Fig. l; but this arrangement, also, is defective, for experience hasshown that by means of apunch or drill rivets can be removed, thusenabling the burglars to take off the panel-plate and pry oli', asbefore, the angle-irons.

My object, therefore, is to obviate this difliculty, and I do so bymaking the exterior plates of the safe of the full thickness of the mainplates and panel-plates under the old arrangement, and then planingdown, or otherwise reducing, the safe at the edges, so as to formangular recesses, `in which the angle irons have their seats. Thus thespaces formerly filled by the riveted panel-plates are lilled by metal,which is in one andthe same piece with the safe body.

My invention further consists of a solid corner for safes, composed ofiron or steel, or of iron and steel welded together, and showing nojoint whatever, as will be hereinafter described.

In the drawings, Figure l represents the old methods of arranging theangle-irons and panel-plates, as above mentioned. Fig. 2 represents theangle-iron and sides of the safe, combined in accordance with myinvention.

Fig. `3 is a representation in cross-section of one form of my improvedangle-iron. Fig. 4 is a perspective view of one portionof theangle-iron, which is used to form the solid corshape. Fig. 5 is a likeview of a inished corner.

ln Fig. 2, c d are the solid exterior plates of a safe, which, at theirjunction, are planed down, or otherwise reduced, so as to form theangular recess, in which the joint-protecting angle-iron f has its seat.The angle-iron is secured to the safe-body by means of rivets or conicalbolts, which are put in about four inches apart, and in ordinary safeshave a diameter of at least one ,inch at the head. It will be seen thatthe solid wall c' d occupies the spaces between the angle-irons formerlylilled by the riveted panel-plates b, as shown in Fig. l, and that,therefore, the edges of the angle-iron are fully and completely andpermanently protected.

The angle-iron I prefer to employ is represented in Fig. 3. It iscomposed of the two exterior layers of irons g and central layer ofsteel L, all welded and rolled together into the proper angular shape.

The angle-iron may, however, be composed of twoor three or more layersof welded iron and steel, and the order in which the layers are placedmay be varied as circumstances require. A very strong and durable ironis thusproduced, which is admirably adapted to protect the edges of thesafe.

clearly in Figs. 4 and 5. rJhe material of which it is formed may beeither iron, steel, oriron and steel in welded layers, as abovedescribed. The corner is formed of -a strip of angle-iron, from one sideof which, at the point at which the corner is to be formed, a triangularpiece is cut out, the apex of the triangle being an angle of ninetydegrees, if the corner is to be square, and each side h of the cutmaking an angle of forty-five degrees with the line of bend t' of theiron. After this is done the iron is bent by suitable means, solas tobring the two sides h in contact, which are welded together, asindicated at k, and a solidV corner is thus formed. To this corner iswelded, in any suitable manner, the angle-iron Z, which is to protectthe edge of the safe not protected by the two angle-iron strips m n, sothat from ner before it has been bent into its ultimate The construction ofthe solid corner is shown the-solid corner v'radiate thethreen'gle-irons which cover and shieldy the three edgesoffthe 'tosecure by Letters'Pitent, is-

1. The' combination, in a safe, of the angleirons, with the solidexterior., plates plened down or otherwise reduced at the edges of thesafe, so as to form recesses in the solid metal, for the reception ofsaid angle-irons, as shown mid set forth.l

2. .Asafehaving the enge-iron'mfwhch meet y at the. corners 4uponitsfexteror `formed lend united substantially as described, so as toconstitute solid corners, as set`forth.

In testimony whereof I have signed my .name to this speitcation beforetwo subscribingwi-tnesses.

WALTER K. MARVIN.

v Witnesses H. A. CooK, fr L.- G.y WILSON.

